Norovirus is a highly contagious virus that causes vomiting and diarrhea. It is often referred to as the “stomach flu” but is not related to the actual influenza virus. Norovirus is commonly spread through food and water contaminated by fecal matter, as well as from person-to-person contact. Outbreaks are common in group settings such as schools, nursing homes, and cruise ships. Symptoms typically last 1-3 days and treatment involves staying hydrated and resting. Prevention measures include frequent hand washing and proper food handling and preparation. If you suspect you have norovirus, it is important to stay home from work or school to prevent further spread of the virus.